Quick foaming agent

Abstract

The invention relates to a quick foaming agent for foaming emulsion explosives, which consists of a stabilizing agent and an accelerating agent. The addition amount of the stabilizing agent is 0.3 to 0.5 percent of an emulsion explosive; the addition amount of the accelerating agent is 1.2 to 1.5 times weight of the stabilizing agent of the emulsion explosive; the stabilizing agent consists of the following components in percentage by weight: 0.5 to 1.5 percent of sulfourea, 20 to 30 percent of sodium nitrite, 3 to 5 percent of potassium nitrite, and 63.5 to 76.5 percent of water; and the accelerating agent consists of the following components in percentage by weight: 7 to 11 percent of ammonium nitrate, 2 to 3 percent of hydrogen nitrate, 1 to 3 percent of glacial acetic acid, 0.2 to 0.5 percent of sodium thiocyanate, 0.5 to 0.7 percent of phosphoric acid, 1 to 2 percent of diammonium hydrogen phosphate, 0.5 to 1.2 percent of citric acid, 1 to 3 percent of urea and 75.6 to 86.8 percent of water. The quick foaming agent has the characteristics of high foaming speed, low corrosion, small aftereffect and the like; meanwhile, the ratio of foam materials can be adjusted according to the formula and process conditions of the emulsion explosive and performance requirement, and the continuous production of emulsion explosive packages is realized.

Description

technical field [0001] The invention relates to a special sensitizer for emulsified explosives, in particular to a rapid foaming agent for emulsified explosives. Background technique [0002] The function of the foaming agent is to form tiny bubbles in the emulsion explosive colloid, use the tiny bubbles to generate hot spots, and increase the density of the explosive. The commonly used chemical blowing agent is NaN0 3 , has the characteristics of low cost and automatic operation. If the foaming conditions are properly controlled, better blasting performance can be obtained. However, factors such as foaming temperature and foaming time are not easy to control, resulting in unsatisfactory foaming effect and affecting emulsification. Explosives and blasting performance mainly have the following deficiencies: [0003] (1) Na 2 N0 3 After adding such as colloid, the foaming speed is slow, and it needs to be kept warm for a period of time to achieve the required and sensitize...

AI Technical Summary

Problems solved by technology

The commonly used chemical foaming agent is NaN0 3 , has the characteristics of low cost and automatic operation. If the foaming conditions are properly controlled, better blasting performance can be obtained. However, factors such as foaming temperature and foaming time are not easy to control, resulting in unsatisfactory foaming effect and affecting emulsification. Explosives and blasting performance mainly have the following deficiencies:

[0005] (3) There are two types of general foaming accelerators, one is acidic substances, such as nitric acid, hydrochloric acid, phosphoric acid, stearic acid, etc., and the other is salt substances such as: benzene nitrate, thiourea, sulfur Ammonium cyanate, etc., generally speaking, inorganic acid has a strong promoting effect, strong acid foams quickly, but is highly corrosive, and at the same time affects the service life of machinery and equipment

The effect of organic acid is small, but the foaming is slow

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